CN103475142A - Motor bearing structure for large-scale fan - Google Patents
Motor bearing structure for large-scale fan Download PDFInfo
- Publication number
- CN103475142A CN103475142A CN2013104081978A CN201310408197A CN103475142A CN 103475142 A CN103475142 A CN 103475142A CN 2013104081978 A CN2013104081978 A CN 2013104081978A CN 201310408197 A CN201310408197 A CN 201310408197A CN 103475142 A CN103475142 A CN 103475142A
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- Prior art keywords
- bearing
- self
- aligning roller
- cover
- fan
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- 238000009434 installation Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 239000004519 grease Substances 0.000 abstract description 3
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The invention relates to a motor bearing structure for a large-scale fan. The motor bearing structure for the large-scale fan comprises a rotating shaft, a sealing ring, a shaft check ring, an oil retainer, a bearing outer cover, a self-aligning roller bearing, an end cover, a bearing inner cover and a bearing sleeve. The self-aligning roller bearing is mounted inside the bearing sleeve, and is fixed through the oil retainer used for preventing lubricating grease from leaking to the outside and the shaft check ring used for limiting. The rotating shaft penetrates through the bearing inner cover and the self-aligning roller bearing to stretch out of the bearing outer cover, and the end cover is used for supporting and fixing the bearing sleeve. The rubber sealing ring is mounted on the outer side of the bearing outer cover. Due to the fact that the self-aligning roller bearing is used in the motor bearing structure, the self-aligning roller bearing bears strong radial loads and axial loads in any direction, the self-aligning function is achieved, the coaxiality error of shaft extension of the fan and a motor can be adjusted, the bearing can still be used normally in times of shaft stress bending or mounting decentraction, the coaxiality of the fan and the motor after being assembled can be guaranteed, damage brought about by fan vibration is reduced, and fan operation is made to be safer and more reliable.
Description
Technical field
The present invention relates to a kind of large fan motor bearing structure, this kind adopts the high voltage large-sized blower fan of self-aligning roller bearing to guarantee the more steady, reliable of fan operation with the bearing arrangement of motor.
Background technology
On the basis of advancing by leaps and bounds in the large fan research and development, motor bearings structure becomes the weak link of a relative thin.Because the fans load moment of inertia is very large, uses traditional bearing arrangement can cause burn-out of bearing, thereby bring large economic loss.Concentricity when guaranteeing fan operation, bear powerful radial load, also will bear axial load simultaneously, and we go out this self-aligning roller bearing structure according to the Practical manufacturing Experience Design, have met the handling characteristics of blower fan, make fan operation safe and reliable.
Summary of the invention
The objective of the invention is to solve large fan and burn phenomenon with bearing of motor and bearing shell, adopt self-aligning roller bearing, bearing outside huge radial load, also can bear the axial load of either direction; Meet a kind of large fan motor bearing structure that the fans load moment of inertia requires.
According to technical scheme provided by the invention, a kind of large fan motor bearing structure, comprise rotating shaft, sealing ring, shaft block ring, oil scraper ring, bearing end cover, self-aligning roller bearing, end cap, internal bearing cover and bearing holder (housing, cover); Self-aligning roller bearing is arranged in bearing holder (housing, cover), and with preventing that oil scraper ring that lubricating grease leaks outside and the shaft block ring of spacing use are fixed, rotating shaft is through internal bearing cover, self-aligning roller bearing, and stretches out bearing end cover, with end cap, bearing holder (housing, cover) supported fixing.
As a further improvement on the present invention, rubber seal is installed in the described bearing end cover outside.
As a further improvement on the present invention, described self-aligning roller bearing adopts a set of self-aligning roller bearing, and it has two row symmetric form spherical rollers, and described spherical roller outer ring raceway is spheric.
Bearing arrangement of the present invention is owing to adopting self-aligning roller bearing to hold, and described self-aligning roller bearing bears powerful radial load and the axial load of either direction, has the effect of aligning, can adjust the coaxiality error of blower fan and motor-shaft extending; When the stressed bending of axle or installation decentraction, bearing still can normally use; Can guarantee the axiality after blower fan and motor assemble, reduce the infringement that the blower fan vibrations bring, make fan operation safe and reliable.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Figure 1: described a kind of large fan motor bearing structure comprises rotating shaft 1, sealing ring 2, shaft block ring 3, oil scraper ring 4, bearing end cover 5, self-aligning roller bearing 6, end cap 7, internal bearing cover 8 and bearing holder (housing, cover) 9.
Described self-aligning roller bearing 6 is arranged in bearing holder (housing, cover) 9, with preventing that oil scraper ring 4 that lubricating grease leaks outside and the shaft block ring 3 of spacing use are fixed, rotating shaft 1 is stretched out bearing end cover 5 through internal bearing cover 8, self-aligning roller bearing 6, the rubber seal 2 of waterproof and dustproof effect has been installed in bearing end cover 5 outsides, has supported fixing with end cap 7 by bearing holder (housing, cover) 9; Guarantee its reliability of operation.
Described self-aligning roller bearing 6 adopts a set of self-aligning roller bearing, it has two row symmetric form spherical rollers, outer ring raceway is spheric, described self-aligning roller bearing bears powerful radial load and the axial load of either direction, there is good aligning performance, can air blower of compensating and the coaxiality error of shaft extension, meet the requirement that load rotating inertia is large, when the stressed bending of axle or installation decentraction, bearing still can normally use.
Bearing arrangement of the present invention meets the requirement that the blower fan moment of inertia is large, not only bears radial load, also bears axial load, has very high impact resistance.Good aligning performance can be eliminated the coaxiality error of blower fan and motor-shaft extending.Make fan operation steadily reliable.Therefore, in the large fan field, this self-aligning roller bearing structure applications is very extensive; The optimal selection of large fan with motor.
Claims (3)
1. a large fan motor bearing structure, is characterized in that: comprise rotating shaft (1), shaft block ring (3), oil scraper ring (4), bearing end cover (5), self-aligning roller bearing (6), end cap (7), internal bearing cover (8) and bearing holder (housing, cover) (9); Described self-aligning roller bearing (6) is arranged in bearing holder (housing, cover) (9), fixing with oil scraper ring (4) and shaft block ring (3), internal bearing cover (8), self-aligning roller bearing (6) are passed in rotating shaft (1), and stretch out bearing end cover (5), with end cap (7), bearing holder (housing, cover) (9) are supported fixing.
2. large fan motor bearing structure as claimed in claim 1, is characterized in that: described bearing end cover (5) outside installation rubber seal (2).
3. large fan motor bearing structure as claimed in claim 1, it is characterized in that: described self-aligning roller bearing (6) adopts a set of self-aligning roller bearing, and it has two row symmetric form spherical rollers, and described spherical roller outer ring raceway is spheric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104081978A CN103475142A (en) | 2013-09-09 | 2013-09-09 | Motor bearing structure for large-scale fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104081978A CN103475142A (en) | 2013-09-09 | 2013-09-09 | Motor bearing structure for large-scale fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103475142A true CN103475142A (en) | 2013-12-25 |
Family
ID=49799880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104081978A Pending CN103475142A (en) | 2013-09-09 | 2013-09-09 | Motor bearing structure for large-scale fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103475142A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746503A (en) * | 2013-12-31 | 2014-04-23 | 沈阳远大科技电工有限公司 | Two-way thrust bearing for vertical motor |
| CN105840552A (en) * | 2016-04-12 | 2016-08-10 | 韦海报 | Installation process for grate cooler draught fan bearing base |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201409033Y (en) * | 2009-04-01 | 2010-02-17 | 美的集团有限公司 | Fixing and sealing device for rolling bearing of large motor |
| CN101917084A (en) * | 2010-06-30 | 2010-12-15 | 无锡哈电电机有限公司 | Bearing device of vertical motor |
| CN203086275U (en) * | 2013-02-04 | 2013-07-24 | 西安泰富西玛电机有限公司 | Large-power motor's rolling bearing lubrication system |
| CN203434785U (en) * | 2013-09-09 | 2014-02-12 | 中达电机股份有限公司 | Motor bearing structure used for large-scale draught fan |
-
2013
- 2013-09-09 CN CN2013104081978A patent/CN103475142A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201409033Y (en) * | 2009-04-01 | 2010-02-17 | 美的集团有限公司 | Fixing and sealing device for rolling bearing of large motor |
| CN101917084A (en) * | 2010-06-30 | 2010-12-15 | 无锡哈电电机有限公司 | Bearing device of vertical motor |
| CN203086275U (en) * | 2013-02-04 | 2013-07-24 | 西安泰富西玛电机有限公司 | Large-power motor's rolling bearing lubrication system |
| CN203434785U (en) * | 2013-09-09 | 2014-02-12 | 中达电机股份有限公司 | Motor bearing structure used for large-scale draught fan |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746503A (en) * | 2013-12-31 | 2014-04-23 | 沈阳远大科技电工有限公司 | Two-way thrust bearing for vertical motor |
| CN105840552A (en) * | 2016-04-12 | 2016-08-10 | 韦海报 | Installation process for grate cooler draught fan bearing base |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |